Collapsible-last lock.



F. J. SHAINSBY, S11.A COLLAPSIBLE LAST 1.06K."`V

Mannion FILED un. 24, 1901;.

Patented 0011.17, 1911.

2 SHEETS-SHEET 1.

(Null- M m Jederwi fahre S/un nsery 5311, l '62, M@

` ,/Qlarnfe'y P. J. SHAINSEY, sn. UOLLAPSTBLE LAST LOGK. APPLICATIONFILED AYR24,190.

Patented Oct. 17, 19M.,

z SHEETS-sum1@ vente un Improvement in (Jolla Locksf of .which thefollowing l depen entl y.

connecting plate and retainedI within the 'drawings representing likeparts.

. iii-side elevation,

. amt Fig.' 1 shaving Y enil UNITEDv ivrjlfirls,NT OFFICE.

TON, OHIO, ASSIGNOR. BY MESNE ASSIGN--.A

LAST COMPANY, 0F DETROIT, MICHIGAN, A-

'coLLArsInLnLAs'r Loox.

Specication o! Application tiled April 24,

To au, 'wiwi/f. 1a mayconcern:

lle vit known that I, FREDERICK JouN h'liamsnr, Sr., a citizen of theUnited Statics, residing at Dayton, in -.tbe county of Mont rolncry `andState of Ohio, have in- )sible-Last lescription, in connection with theaccompanying draw- `ingsuis a specification, like letters on the Myinvention is a. collapsible last lock, capable of automatically lockingthe instep block of a last in expanded or dis-tended position, one formof my invention also pro-.

riding means for automatically holding thel instep block of the last incollapsed position while l)erlflittingf thc heel part to swing in- Oneof the most diilicult problems to sol vc in this art is theproperlocking of hinged lasts without introducing colnpllcatedgor ex- ,e'nsiveaccessories. Of course the lock must e located yiadjaccnt the transversecuts or .openingsof the lust, and these must ot be cut away `to anyextent because the train which is brought upon'the last is g 'eatest ntthis middle region and hence all tle 4mate l must remain lor stren th.According; my present invention inc udes the rovislon of a latcl orbolt, stamped out o' the boundaries' of the latterin one and the sameplape therewith, ,being automatically pro- Jeqted behind `the collapsinpin or rivet when the last is in expander? position.

Inrther advantages of my mvention and thegconstrnctonal ,detailsthereofy will be m laplgmrent from the following descripf takeninconnection with t e accomppnying drawings, in which Ihave shown reifeout of many embodiments of which vention is capable.n*-hedrawingaFigures 1 and 2 reprepartly broken away, a iw .prmgidedfwith vone 4form of my inventhe last in its lengthorexpanded position,and Fig. 2 in its collapaedfposition; 3 and 4 are views of the two, artsofthe compound hinge connection; Fig. shows a hook lfor unhooking theYlast; Figs. und 7 are views similaito Figs. 1 and 2, showing a simplerform of my invention; Fig. 8 is a side view of a modi- Lettersl'atent.Patented Oct. 17, 1911. 190e. serial nu. 313,01..

My invention applies more particularly to what are known as the Pymcollapsible lasts, sometimes called also Krentler collapsible lasts onaccount of the various Krentler iniprovernents on the original P mconstruction. This type of last; as s own in the drawings, comprises aheelpart l and forepart 2, .comprising also a body ortion 3 and un upperor instep part 4. I lave omitted in the drawings to show the varioususual last trimmings, and will confine my description to theimprovements Whichconstitute my invention.

The last parts are severed as usual, by a longitudinal downwardly curvedslot 5, eX- tending forwardly into the fore art to permit the instepblock to' rise and all, and the V-shaped gap f between the rear end ofthe instep block md the forward end vof the heel partfor permitting thelatter to be turned on the pivot pin 7 as a center. The heelpart 75 isprovided with a vertical kerf 8 and the forcpiu't with an alinedvertical kcrf 9, 10,

in which, Ain the last of the drawings, Figs.

1 and 2, plates I1 and 12 are mounted standing in-one and tl e sameplane, and in Figs. 6 and7 a single plate 13. The plate 11 is secured atits forward end on the pivot-7 and at its rear end is made rigidlyfastby transverse pins or rivets 14, l5, While the forward plate 12,which together with the plate 1.1- constitutes the compound hingeconnection between the three parts of the last,

is provided with .a cam-shaped slot or open- 'ing 16, in which Works atransverse pin. 17,

operating on 'the general principle explained 90 for eiiample in therPym Patent No. 673,889. The slot 1-6' is provided with a lower recess18 and a semi-circular portion 19, in which VI mount a tongue or bolt20, held under a normal tendency to rise, by means of a. spring 21,secured in notches as shown plainly in Figs. 1, 2, 4 and 8, in theopposite edges of the adjacent parts, so that the bolt is 4normallyheldin the position shown the bolt locking directly against the pin 17,whereby the last is held unyieldingly extend l.- In Fig. 4 the spring isomitted and the latch is down in the recess 18. The recess 1.8 and bolt20 are length andso located that in whatever postion the parts are, thebolt is engaged at its lied form of hinge.

opposite sidesxand preferably also adjacent in thedrawings Figs. 1, 2,8, Fig. 1 showing 100 preferably of such a V10:5

\ lar ement for the' in 7, anda shoulder -permit this movementdownwardly. `To facilitate by the walls of the adjacent erfs,so that 1tis im ossible for it to drop out or be inadvertent y pushed out orloosened. The bolt turns up lon its socket recess 19 with a hinge-likeaction, and is always `in proper position, being stamped fromV the slimeieee of metal owhich the hinge is forme its opposite ends,

y Above the boltis an enor extension 22 in the cam slot 16, see 1,'forreceiving a pron vor hook 23, Fi for depressing the late or bolt 20 whenthe arts are in the position shown in Fig. 1, an for the pin 1;1 whenthe gats arein the position shown Fig. 2. e plate'11hasvan annular r ear24 concentric with the perforationr opening i plate 12 as acorrespondingly 26 tting'snugly on the ear 24 in the same planetherewith, and terminati 27. 4Thehook-sha jend 28 ol the late 12 at thelower si on the 'arc surface' ofV partially embraces, and coperates withthe cam slot 16 and in 17 in compelling the instep block A,to c ose downinto collapsed osition as shown'in Fig. 2, when the plate 2 has beenturned forward about theFpin 'T as a center, 4to the ositionshown in`xg. 2. When in'this osition'the fore'part will remain collapsed and the',heelpart can be or down, as shown in full lines and 1n otted lines;actively. This facilitates the entrance o y shoe without disturbinlgethelining, and permits the heelpart to lowered while the foreart'stillremains colla ed. l en the heelpart has n lowered, the forepart isdistended or lexpanded byfturning the plate 12 backwardly and ownwardlyupon the pin 7 as a center, and to to be readily accom plis'hed I haveprovided the late 12 with a shouldered projection 29, w ich provides anotch 80 against which the hook 23 may be pressed, thereby turningh theplate 12 t e speedy final movement of the -plate 12 l'. provide a secondnotch 31, against which the hook 23 may be pressed when the parte arenearly in the position shown in Fig. 1, for completing" the movement.The moment that the plate 12 has been turned into its final rearwardposition, the latch or bolt 20 is instantly raised by its spring therebyrendering the last perfectly rigid. To give 'great strength to thisposition I have' rovided a curved foi-ward edge 32 to the pate 11, and acorrespondingly curved edge V33 V'to the plate l2, so that said edges32, 33, meet throughout their length when the last is lengthened andexpanded, said lcurves interlocking and preventing any tendandpossibility of Vshifting' movement. Figs. 6*8 asimpler form ofconnection and the` shaped recess in astop e'of the recess 26 sides theear 24, which it ltlie last'within a fintoV the annular seat 21 intolocking position,-

is shown, in which th independent movement of the instep h ook isomitted, they hinge late 13 there shown containin a cam slot the same asthe slot 16 of p ate 12, and a bolt or latch 35 the same as the bolt 20already described, said bolt 35 being 9p- 'erat'ed by the hook 23inserted in an enlargment 36 of said slot correspondingrto theenlargement 22 already described. he bolt Sofie shown asdield'raised byatlat loafA spring'j? in Figs. 6 and 7, andvbya icoiled spring 38 rin Fi8. YThe plate 13 has three holes `39, 40, 4 for receiving a pivot pin 7and tra erse' insyor rivets 14, 15, of the lastfaeo adyl The plate 12 isretersbly grossed with oldngjnotc 42120 enga or rivetewasshown in 2.

In making xn l. im rov collapsible last, the last issaw 'in,eusualmannerandjis then provided 'with vertical saw lcuts or kerfs yextending inwardly, in alinetnent with each other, perpendicolaritol-the meeting faces of the' adiacentseca t ends, said! saw cut or korteprresponding accurately width to the thickness' of the plate and con`nections 11 and 12 or' 1.8, as thel case may he. In the 'former casetheplate 12 is interiocksd with theplate 11 so that the' recess 2o fitstightly and accurately over the bossor a transverse pin `ear 24, and thecurved edge 33 is nested snug against, the edge 32. :The circular 'rearend of the bolt 20 1s then pressed snugly 19 provided v.there or in theplate 12, and the sprinlm is pressed into `its holding notches. ecompound connection, as thus assembled, is thenlplaeed in the alinedkerfs of tl'lelast and the `pins T, 14, 15 and 1T are inserted andsecured, there'- by'complctingl the last. If now it is desir to insertthe ast in a lastedshoe, the bolt` a shoulder or? 20v is rst de ressedby the hook 23 and the heelpart is tt en turned up to'the osition shownin F1g.'2, thereby ing the plate 12 forward, and as its cam slot '16rides over the pin 17 1t automatically coll lapses the forepart,whereupon the last is' 'inserted in the shoe its iai' as practicable, byhand, and thenl the heelpart isturned ldown to the position showjn inFig. 1.. This rootement of the'heelpart in automatica ly fore# 11a mypreferredv con struction, as 'shown in Figs. 1-4, still leaves? theforepart contracted, however, so that the" down-turning of 'the heolfartmay readily' push the forepart forwar lining of the shoe forward withit.` thelast for carryin 'the we has thus been turned down into exltended position'within the shoe, theoltxeritf"l toi' of t e plate 12andif nessary completes the down-turning of saidplate b 'engaging thenotch 31. also, `whereupon t Q-bolt 20 snaps upwardly behind the pin 1Tand 'locks' the last rigidly in .expanded position, firmly supportingallparts of' the shoe, will! rasees downwardly upon the: notch 30' be seenthat; although I have. ln'ovided a compound hinge plate, in whieh thepart |23 is capable ol' operation independently ot' the parl ll, or bothparts It and l2 may be op eraled together at will, vet the last does notrequire any more transverse pins than t'ormerly. and yet the bingeplates or eomponnd `ronneetion lie all in one 'and the same plane so as'to oeoupy the same narrow parallelsided kerfs. Thi,4 gives great.strength to the last and also eeonomy of mannt'aeture, and prevents theparts beeoming laterall)v diseonneeted or bent and broken.

The eonstrnetion shown in Figs. tL-Is| is put together in general thesame as already deserihed for the preferred eonstrnetion, exeepting thatthere is only one plate to be plaeed, said plate reeeiving its bolt andspring in substantially the way already de'- seribed in the othereonsirnetion.

l do not herein elaim broadlv thtl provision of a eotiibinedlot'lt-amhhinge in the form of vel-tival plate and boit lying in thesame p. ne therewith` as that, together with other features, l'orms thesubjeet matter ol my eopending appiieation Ser. No. 302,6721' tiledl"`ebrnar} 2t. ltttlt. and i malte no elaim to a eomponnd lot-king hingeronneet ion eomposed of two platesV l'vingr in the -same plane andmovable imlependentl)` ol' eaeh other. in its broad features. as thatide: is the invention ot"(. l". l-vn|,bn1

'hat vl elaim and desire to seenre b v l.etters latent ol' the l'nitedStates is:

l. last. eomprising a forepal't and a heelpart. arranged to swing o`neat-h other. and provided with vertie kerfs ln their meeting ends.nnbined with a plate hinging the -heelpart and l`orepart ttgelber` and aloeliing platt-,standing edgewise in t-he same plane as saidlirst-n|entioned plate. and swinging on the same piv otal eentertherewith. said-two plates snnglv Iitting and being retained bv saidlierts.

2. eollapsible last, having.: heel-part. a torepart body. aninstep-,portion.said lnree 4parts being relativelvv movable torinsertion 1n a shoe and removal therefrom. eaeh part -with respeet toboth ol' the other parts. and

automatie lot-hing meansl mounted to be brought into position foroperation h v the` lnovement of the parts lo tnllv lengthened positionand having provision to be then operated to autonnitieall)I lor'k saidthree parts when fullyF lengthened and expanded.

:h eollapsitile last. having wheel-part. a forepart body. att instepportion. all neeessarily relatively mm able I'or insertion in a shoe andremoval from thtI shoe. means permittingdlie dissinmttam-ons moven-u-ntof Isaid three last-parts. and antomatie Ioeking meebaoism i'onstitotingpart ol said permitting means and responsive toV movements of tht` lastparts into lengthened and ex )anded position to automatically lock saidthree parts in immovable position when full)r lengthened and expanded.

At-. A eollapsible last, having a heelmrt, a lorepart body. aninstepportion, sait three parts being relatively movable. each withrespeet to both of the others, and automatic lot-king means adapted tomove into operative position automatically when said three parts aret'ully lengthened and expanded to loelt the same in said follylengthened and expanded relation, said locking means remaininginoperative until the last parts are approximatelr) in said lengthenedand expanded position.

5. A eollapsibl'e last. having a heelpart, a fort-part body, aninstep-portion, all relatively movable. means permitting thedissimnitam-ons movement of said three lastparts. and antomatie loekingmechanism eonstitnting part of said means and movable separately fromthe rest of said means automatiralty lo loek said three parts inimmovable position wheln fully lengthened and expanded.

t t-ollapsible last. having a heelpart, {orepart body and instepportion, all relativel)y movable. with vertleal longitudinal kei-t's intheir meeting ends, and means standing vertically in said kerfs foreonneeting lsaid three parts, and automatic loeking nwehanism ranried bysaid eonneeting means l'or loeltiiii: said parts automatirally when thelast-parts are moved to full lengthened and expanded position.

T. A eollapsible last, having a heelpalt, t'orepart bod v and instepportion, all relatively movable` with vertiea. longitudhlal kerl's intheir meeting ends. means stading vertieallv in said kert's t'orconnecting said three parts, said eonneeting means having a ram slott'or eollapsing the instep portion. thel latter being provided with atransverse pin oeenpying said slot, and a loelcing deviee movable intosaid slot across tliefpath of said pin.

h'. eollapsible last, having a A,heelpar forepart body and instepportion, all relatively movabte, with vertlea-,l longitudinal kert's intheir meeting ends, means standin vertiealhv ill said kerfs for,eonneeting sai three mrts, said eonneeting means having a eam slot t'oreollapsin r the instep portion, the latter being provit ed with atransverse pin oeeupying said slot., a loekinlr device movable into saidslot aerossvtlvl'e pat i of said pin` and a spring for antoititieallymaintaining said locking deviee under a tendency to oernpy lockingposition.. l t

.t. A eollapsible last, having a. beelpart, forepart body 'amt instepportion, all relativety movable, with vertleal tongitudinal hel-fs intheir meeting ends, means standing vertieally in said kerfs foreonmtetng said three parts` said eonneetng means having a cam slot forcollapsing the instep portion,

-vertically in said kerfs connecting with said slot, and a spring"ressed lookin bolt mounted in said recess in the lane o said kerfs.

10. collapsible last, having a heelpart, fore art body and instep rtion,all relative y movable, with vertical longitudinal kerfsinftheir meetingends, means standin for connecting sai three arts, said connecting meanshaving a cam s ot for collapsin the instep portion, the latter beingprovi ed with a transverse pin occupying saidV slot and aspring-actuated swinging locking bolt carried by said connecting means,to swin automatically into the path of said pin or maintaining saidthree last-parts in lengthened and expanded position. A

11. A collapsible last, having a heelpai't, fore art body and insteportion, all relative y movable, with vertical lon itudinal kerfs intheir meetin ends,

fkerfs,

vslot provided with a swin bracinrgl i lateike con-V necting meansstanding vertically in said said means being provided with a cam slotadjacent said instep portion, the latter 'having a transverse pinoccupying said slot, i

and there being a recess connectin gwith said ing bo t lyingV in thesame plane as the a jacent connecting 30 plate.

12. A collapsible last, having a compound :hinge connection formed oftwo lates lying in the same vertical plane an occupying vertical kerfsin the meeting ends of the collapsible lasbparts, and a single pivot pinfor said two plates, one of said plates having an annular ear mounteddirectly on said pin, and the other ofsaid lates havin an einn portionpartial surroun ing said ear an turning independently thereon.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

n FREDERICK JOHN SHAINSEY, Slt.

Witnesses:

MAY B. Maritim, E. J. Finne.

